Double-station photoelectric multi-target elevation matching positioning method

Abstract

The invention discloses a double-station photoelectric multi-target elevation matching positioning method. The method comprises the following steps of firstly, determining relative orientation and height between double base stations, receiving all target observation information acquired by photoelectric equipment of each base station, and putting the target observation information into respective target buffer areas, then, enabling target tracks formed by the two base stations to be crossed pairwise, acquiring all possible crossed target tracks, and calculating the horizontal distance of the target according to azimuth angle information, then, establishing an earth coordinate system, and calculating a target elevation by using the observation pitch angle of each station, conducting target authenticity discrimination by using an elevation result, and giving the credibility of the cross target in real time, and reporting an optimal cross target track by using the auxiliary information, and retaining a suspected cross track and a corresponding track number. According to the target cross positioning method based on elevation matching, the false cross problem occurring in the multi-target cross process can be effectively solved, the target authenticity can be quickly and effectively calculated, and therefore the target positioning problem in the passive detection process is solved.

Description

technical field [0001] The invention belongs to the technical field of photoelectric passive detection and positioning, and in particular relates to a dual-station photoelectric multi-target elevation matching positioning method. Background technique [0002] In recent years, photoelectric detection technology has made great progress and has been widely used in the fields of national defense construction and national economy. In particular, it has become the core technology and important means in military reconnaissance and early warning. As a passive detection method, accurate positioning is a major problem in the field of photoelectric detection. [0003] In passive photoelectric detection technology, two-point stations are often used to locate the target by using the angle difference of the observed target. Usually, the longer the station layout baseline, the higher the positioning accuracy. However, limited by station layout conditions and communication distance, the d...

AI Technical Summary

Problems solved by technology

However, limited by station layout conditions and communication distance, the distance between two stations is often less than 300 meters in actual use

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